distances and positions of 380 double and triple stars, &c. 17 
been the person selected for this purpose, as possessing the 
necessary qualifications of an eye practised* in observations 
with this particular instrument, a correct hand, and un- 
biassed impartiality. A few measures by Mr. Troughton 
will also be found on similar occasions. 
Of the general disposition of the following paper, it will 
now be necessary to give some account. The stars observed 
by us, are arranged in order of right ascension, and such 
names, synonyms, and references are attached, as will serve 
to identify them in the writings of other astronomers. The 
catalogues of Mr. South •f* and Mr. Struve, J have been ex- 
tremely useful to us ; the latter being much more extensive 
than the former, the number of each star, in the order in 
which it stands in that work, is annexed : the synonyms 
therein given are also generally adopted, with such additions 
and corrections as seemed necessary. 
Our observations will be found to include many stars 
given by Sir William Herschel, in his catalogue of 145 
new double stars, printed in the Memoirs of the Astro- 
nomical Society, Vol. 1 . These are cited by their numbers 
(for instance, 41 of the 145.) Some few discovered by our- 
selves, are either mentioned as new, or may be known by 
the absence of any other reference. The right ascensions 
and declinations are generally those of Struve. When de- 
* Prior to his appointment at Greenwich, Mr. Richardson, by daily experi- 
ence, had been long familiar with the Blackman-street instruments. 
f This catalogue was arranged in the year 1818, by Mr. S. and was intended 
for private use only ; at the request, however, of the Reverend Dr. Pearson, it was 
communicated to the Astronomical Society, in the spring of 1820. 
t This catalogue, unfortunately, did not reach us till the commencement of the 
present year. 
MDCCCXXIV. D 
